The formulas below correctly represent the ionic compounds of the elements involved in CSCI Na3P Al2S3.
For binary ionic compounds, the compounds are named by writing the cation name first, followed by the anion name. For example, KCl, an ionic compound containing K+ and Cl- ions, is called potassium chloride. Consider the electronegativities of two related atoms. The greater the difference, the more ionic the bond.
For a compound as a whole, its polarity can be considered from the configuration of the polar bonds through the molecular conformation. An ionic bond is formed when an electron moves from one atom to another. Ions of different elements can be combined by forming ionic bonds. Cations and anions are formed when atoms lose or gain electrons.
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What quantity in moles of chlorine gas at 120.0 °C and 33.3 atm would
occupy a vessel of 36.5 L?
The number of chlorine moles present in the vessel are 37.67 mol.
What are moles?
Moles are the number of substances present in a system which consists of entities like ions, atoms, or molecules as much as atoms in the weight of pure carbon which is 12 grams. It is the SI unit of amount of substance.
One mole of a substance is equal to the Avogadro Number which is equal to 6.022×10²³.
According to Ideal gas law,
PV=nRT where,
P= Pressure
V= Volume
n= number of moles
R= Ideal gas constant
T= temperature (in Kelvin)
n= PV/RT
⇒33.3×36.5/0.0821×393
⇒1215.45/32.2653
⇒37.670
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What is the normality of a solution of sulfuric acid (H2SO4) that containing 86 g
per liter of solution?
Normality of a solution of sulfuric acid (H2SO4) that containing 86 g
per liter of solution is 1N
What is normality?The gram equivalent weight of a solute per liter of solution is what is known as a solution's normalcy. The comparable concentration is another name for it. The units of concentration are denoted by the symbols N, eq/L, or meq/L (= 0.001 N). A hydrochloric acid solution's concentration, for instance, could be stated as 0.1 N HCl. The reactive capacity of a specific chemical species is measured by gram equivalent weight or equivalent (ion, molecule, etc.). Utilizing the chemical species' molecular weight and valence, the equivalent value is calculated. The only concentration unit that is reaction-dependent is normality.
g equivalent mass of H2SO4 = 86g
Volume of solution in liter = 1 l
number of g equivalent of H2SO4 = 86/86 = 1
Normality = number of g equivalent/ volume of solution in liter
N = 1 / 1
Normality = 1 N
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is the molecule shown below chiral or achiral? (ch3)3cch(ch3)2
From the structure of the molecule as shown, the molecule is chiral.
What is a chiral molecule?We say that a molecule is chiral if there is a carbon atom in the molecule that is bonded to four different atoms or groups. In this case, we can say that the molecule is chiral in the sense that is handed and it is able to rotate the plane of polarized light.
Having said that much we can see that there is a carbon atom that is in the compound that is shown that is bond to four different atoms or groups thus it has fulfilled the requirement to say that the molecule is chiral.
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Formation of crystals of sugar from a sugary syrup is a …….
chemical change.
Answer:
im pretty sure thats physical
Explanation:
What are 5 examples of polar covalent bonds?
Answer:
Water - H2O.
Ammonia - NH. ...
Sulfur dioxide - SO. ...
Hydrogen sulfide - H2S.
Ethanol - C2H6O.
Explanation:
Answer:
Water - H2O.
Ammonia - NH. ...
Sulfur dioxide - SO. ...
Hydrogen sulfide - H2S.
Ethanol - C2H6O.
10x-74=92
answer for algebra
10x - 74 = 92 ---> (Add 74 to both sides. This gets rid of the 74)
+ 74 +74
10x = 166 ---> (Simplify. The 74 you added to the 92 becomes 166)
10x/10 = 166/10 ---> (Divide both sides by 10. This gets the x by itself)
v(Simplify)v
x = 83/5 OR x = 16.6
The student claims that the calculated concentration is too high because the filter paper and AgCl(s) precipitate were not fully dry. Do you agree or disagree?
I disagree, the presence of water would decrease rather then increase the concentration of the precipitate.
Would the concentration be too high?We know that the term concentration has to do with the amount of substance that is present in a system. We know that water temds to reduce the concentration of a system. The more the amount water in the system, the less the amount of the substance in the system.
The filter paper is used to weigh the precipitate or the solid product that is obtained in the reaction. We know that the standard practice is that the filter paper ought to be dried and then we can then be able to weigh it and obtain the mass of the substances that was in the solution.
If the filter paper is not fully dry, we would have more amount of water in the system and this would reduce the amount of the AgCl thereby reducing the concentration rather than increase it.
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What are some things you do to help you learn and remember new words and what they mean?
The following are some things you do to help you learn and remember new words and they mean:-
Learn in chunks and scripts.Visualize what the word or phrase looks like.Reading is one of the only methods to teach vocabulary and normal learning is the approach that gives college students the possibility to exercise and grasp the stages of crucial reading that result in studying success and progressed word utilization.
One of the maximum impactful mastering techniques is allotted practice spacing out your analyzing over several brief intervals of time over several days and weeks. The only exercise is to work a quick time on every elegance every day.
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5. The air inside a beach ball is at a temperature of 25°C and a pressure of 1 atm. If the ball
contains 0.85 mol of air, what is its volume?
The volume of the given ball is 21 L.
Pressure = 1.0 atm
no. of moles = 0.85 mol
Temperature = 25°C = (25+273) K = 298 K.
we will use the ideal gas equation,
PV = nRT
where,
P = pressure
V = volume
n = no. of moles
R = gas constant = 0.0821 L atm/mol K
T = temperature
Let's substitute the values into the above formula,
1.0 x V = 0.85 x 0.0821 x 298
V = 20.7 [tex]\approx[/tex] 21 L.
Thus, the volume of the ball is 21 L.
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One mole of an ideal gas is expanded from a volume of 1.00 liter to a volume of 8.93 liters against a constant external pressure of 1.00 atm. How mush work (in joules) is performed on the surroundings?
W = Pexternal(ΔV),W = (1 atm) 8.93 L - 1 L)(101.3 J/1 L·atm)= 803.309J. W. Work, pressure, and volume are directly correlated using a formula. W = Pexextr(V) Consequently, the environmental work is 803.309J. W
How do volume and value work?Market share comes in two flavors: value and volume. The business's overall shares of its total accumulated sector sales serve to define a value market share. On the other hand, a volume market share refers to the precise number of units that an entity markets relative to the total number of units that are sold in the market.
W = quantity of work completed =?
1.00 atm of pressure is P.
1.00 L is the initial volume.
= 8.93 L ultimate volume
W = Pexternal(ΔV),W = (1 atm) 8.93 L - 1 L)(101.3 J/1 L·atm)= 803.309J. W.
How much solid is there?How much room an object occupies is determined by its volume. It is calculated using the quantity of unit cubes required to completely fill the solid. We have 30 unit cubes in the solid after counting the unit cubes, hence the volume is 2 units. 3 units 1 unit equals 30 cubic units
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What is the correct equation in word form
Mg + AgNO3 ---> MgCI2 + Ag
Magnesium plus silver nitrate yields magnesium chloride and silver
Magnesium reacts with silver nitrate forming manganese chloride and silver
Manganese plus gold nitrate yields manganese chloride and gold
Magnesium reacts with silver nitride to form magnesium chloride and silver
Answer:
A
Explanation:
Why would this path of neurons not work to perform a reflex?
Select all that apply.
the motor neuron should be the interneuron
the motor neuron should be the sensory neuron
the sensory neuron should be the interneuron
the interneuron should be the motor neuron
For reflex action the motor neuron that generates the reflex action and pass to the sensory neuron. Interneuron helps to sensory neuron to communicate with motor neurons. Thus in this picture, the motor neuron be the interneuron and interneuron be the motor neuron. Thus option A and D are correct.neuron should be the interneuron.
What is reflex action?Reflex action is generated by our body by the sudden action to for sense of touch or other stimulants. For example, if touch a very hot body, we will take our hand within second and this is resulted by the action of neuron and is called the reflex action.
The movement of hands and legs are controlled by the motor neurons. If we touch any stimulant sensory neurons pass signals to the motor neuron and a signal containing the information of action is returned to the sensory neurons of our hand.
Here, the communication between sensory neuron and motor neuron is facilitated by interneurons. Thus, in this picture the motor neuron be the interneuron and interneuron be the motor neuron. Thus option A and D are correct.
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What is the molarity of a solution containing 150 mL of a 3.25 M sodium hydroxide
(Na0H) solution after we add 275 mL more water?
The molarity of a solution containing 150 mL of a 3.25 M sodium hydroxide ( NaOH ) solution after we add 275 mL more water is 1.14 M
Given that :
molarity of solution M1 = 3.25 M
volume of solution V1 = 150 mL
Molarity of solution M2 = ?
Volume of solution after dilution V2 = 150 mL + 275 mL = 425 mL
using the dilution law , we get :
M1 V1 = M2 V2
M2 = (M1 V1) / V2
M2 = ( 3.25 × 150 ) / 425
M2 = 1.14 M
Thus, The molarity of a solution containing 150 mL of a 3.25 M sodium hydroxide ( NaOH ) solution after we add 275 mL more water is 1.14 M
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Consider two mixtures of gases available for use to fill a tire. One has the same composition as air (Gas 1: 20% O2, 80% N₂) and
another has added carbon dioxide (Gas 2: 15% O₂, 80% N₂, 5% CO₂). Compare the partial pressure of nitrogen gas in a 2L sample of
Gas 1 at sea level (1 atm) to the partial pressure of nitrogen gas in a 2L sample of Gas 2 at sea level. Explain your answer.
The partial pressure of an individual gas from a certain mixture of gas can be determined by its mole fraction and total pressure.
Total pressure of both mixtures are same so there partial pressure must be determined from its mole fraction. Mole fraction is defined as the number of molecules of a particular component in a mixture divided by the total number of moles in the given mixture.
Mole fraction (X):
X(solute) = (Moles of solute) / Total moles of solution
X(solvent) = (Moles of solvent) / Total moles of solution
∵ X(solute) + X(solvent) = 1
Hence, the partial pressures of the individual gases of gas-1 and gas-2 can be determined from its mole fraction.
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Name the following alkyl halides
The IUPAC nomenclature of compound 1 is 5-bromo-2-methylchloridepent-2-ene and the name for structure 2 is 5-iodo-hex-2-ene
IUPAC nomenclature is the method of naming the organic chemical compounds by following certain rules and criteria given by IUPAC.
This nomenclature is based on naming a molecules longest chain of carbons connected by single bonds, whether in a continuous or in ring form. Everything else like multiple bonds or atoms are other than carbon and hydrogen are indicated by prefixes or suffixes according to a specific set of priorities.
In structure 1 we can see that we are number so that the double bond that is present gets the least priority and then the naming is done in the alphabetic order. so the name is 5-bromo-2-methylchloridepent-2-ene
In structure 2 the same thing is followed and the name of the structure is
5-iodo-hex-2-ene
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1. Outline a synthesis showing the necessary reagents and intermediate molecules for the following
transformation. For carbon sources, use alkyl halides with 4 or fewer carbons. You will need to use
more than one reaction.
A synthesis showing the necessary reagents and intermediate molecules for carbon sources, use alkyl halides with 4 or fewer carbons is zinc and copper pair in alcohol to reduced alkyl halide.
Which alkyl halide is more reactive ?The Zn/Cu pair in alcohol is used to reduce alkyl halides. In alcohol, the Zn/Cu pair substitutes hydrogen for the halide of an alkyl halide to generate hydrocarbons. The Zn/Cu combination produces methane in alcohol by taking the iodine out of methyl halide and adding hydrogen.
Thus, a synthesis showing the necessary reagents and intermediate molecules for carbon sources, use alkyl halides with 4 or fewer carbons is zinc and copper pair in alcohol to reduced alkyl halide. Alkyl iodide is more reactive.
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